"Obviously, (Marshall's) a very, very good football player," Arkansas coach Bret Bielema said Monday, according to ArkansasNews.com. "However long he stays on the sideline is obviously in their coach's hands. But I think when we're playing Auburn, if you're a true competitor you want to play against the best. ... That other guy is going to step in and he is a tremendous player."

Arkansas opened its preseason camp Monday.

Bielema said in July he expected Marshall to play against the Razorbacks, and his prediction proved true when Malzahn decided against suspending the senior for the entire game. Marshall has since paid a $1,100 fine for a citation for marijuana possession and illegal window tinting.

"We're going to base it off Nick like he was (playing)," Arkansas defensive tackle Demarcus Hodge said Monday, according to ArkansasNews.com. "And if this new guy comes in, we're going to play our defense. We're going to play what we know to play. We're going to play Arkansas Razorback defense."

Marshall was 7-of-8 passing for 118 yards and one touchdown in the Tigers' 35-17 victory at Arkansas in 2013. He also rushed for 59 yards against the Razorbacks, who failed to win an SEC game for the first time in the school's history last season.

Johnson played one snap against the Razorbacks, throwing a 15-yard pass for a first down.

Auburn will open its eighth consecutive season with a different starting quarterback on the field. Malzahn has not yet used the same starting quarterback in back-to-back years on opening day in his nine seasons as a college coach.